How lost punctuation, a magician, and Twitter's 140-character limit created a fake Martin Luther King Jr. quote. From Megan McCardle at The Atlantic magazine:

"Yesterday, I saw a quote from Martin Luther King Jr. fly across my Twitter feed: "I mourn the loss of thousands of precious lives, but I will not rejoice in the death of one, not even an enemy." - Martin Luther King, Jr". I was about to retweet it, but I hesitated. It didn't sound right. After some Googling, I determined that it was probably fake, which I blogged about last night.